7813325 has 24 divisors (see below), whose sum is σ = 10806600. Its totient is φ = 5564160.

The previous prime is 7813303. The next prime is 7813331. The reversal of 7813325 is 5233187.

7813325 = 547² + 548² + ... + 571².

It can be written as a sum of positive squares in 12 ways, for example, as 3087049 + 4726276 = 1757^2 + 2174^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7813325 is a prime.

It is a super-2 number, since 2×7813325² = 122096095111250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9011 + ... + 9839.

It is an arithmetic number, because the mean of its divisors is an integer number (450275).

Almost surely, 2^7813325 is an apocalyptic number.

It is an amenable number.

7813325 is a deficient number, since it is larger than the sum of its proper divisors (2993275).

7813325 is a wasteful number, since it uses less digits than its factorization.

7813325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 876 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 7813325 is about 2795.2325484653. The cubic root of 7813325 is about 198.4321158148.

The spelling of 7813325 in words is "seven million, eight hundred thirteen thousand, three hundred twenty-five".